jigga-jack 

To take something that is not yours while the owner is not looking.

What the fuck, man, you think you can jigga-jack ma Jamaican jumping jar justly?!

jigga-jack by Jigga wha? July 12, 2006

jiggamack 

1.) (Noun) A person who spits mad game

2.) (Verb) The act of spitting mad game

3.) (Past tense verb) Already conquered, been there done that.

1.) Dude, Joe's hooking up with like 5 different chicks on a consistent basis. He's such a jiggamack.

2.)John: "Wow, that Kerry girl is smoking."
Britt: "You cannot jiggamack Kerry! She's off-limits!"

3.) Mike: "Maybe you should hook up with Danielle."
Ty: "She's already been jiggamacked."

jiggamack by The Ultimate Jiggamack January 20, 2008